CN201236790Y - Self-lubricating type piston - Google Patents
Self-lubricating type piston Download PDFInfo
- Publication number
- CN201236790Y CN201236790Y CNU2008200297709U CN200820029770U CN201236790Y CN 201236790 Y CN201236790 Y CN 201236790Y CN U2008200297709 U CNU2008200297709 U CN U2008200297709U CN 200820029770 U CN200820029770 U CN 200820029770U CN 201236790 Y CN201236790 Y CN 201236790Y
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- piston
- self
- connecting rod
- lubricating type
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- Reciprocating Pumps (AREA)
Abstract
The utility model belongs to a self-lubricating type piston on a piston pump in liquid equipment. The self-lubricating type piston is provided with a piston head and a piston rod, wherein the piston head is fixed on the piston rod; and a self-lubricating mechanism for the piston, which continuously supplies lubricating oil to the piston head, is mounted between the piston head and the piston rod. Though the lubrication of automatically-feeding oil, the utility model solves problems of local heating and the excessive wear caused by relative movement of the piston and the cylinder liner, and also prolongs the use period of the cylinder liner. Therefore, the service life of both the piston and the cylinder liner reaches above twice as much as being stipulated by national standard.
Description
Technical field
The utility model relates to dynamic power machine, fluid machinery technical field, especially for the multi-cylinder piston slurry pump of slurry conveyed, it is core component---the new structure that piston is developed at high concentrations such as mortar, mud, ore pulp, mud, salt slurry coal slime, remote conveying equipment reciprocating pump.
Background technique
At home in the system of thermal power plant ash trench system, the conveying of mill tailings slurry etc. at present, at a distance, the high concentration conveying equipment mainly contains plunger type, two kinds of reciprocal volume slag stock pumps of piston type, the two is in not too big difference of power section, main sealing configuration part at plunger, piston, plunger type sealing is except guiding, V-seal, key component needs an other supporting high pressure washing water pump that one road high pressure clear water is provided, isolate slurry and sealing system, thereby guarantee the long-lasting of sealing.The disadvantage of being brought is the consumption increase of clear water, electric power thus, and this part clear water has reduced the real work flow of main pump along with slurry is together drained.Operating mode such as some occasion such as underground filling, concentrate slurry conveying does not allow in the clear water injected media in addition, has limited the popularization of plunger pump like this.And there is not this defective in the piston type thick fluid pump, and developing reciprocating pump efficient, novel, environmental protection thus will be the preferred unit of more wide application.
Summary of the invention
The purpose of this utility model is a kind of self-lubricating type piston of design, this self-lubricating type piston uses at piston mud pump, with adapt under the different operating modes, when the slurry of different field is carried, the core component piston of this equipment and cylinder sleeve all have long working life and more succinct maintenance mode, reduce the operation and maintenance cost of slurry conveying equipment simultaneously.
Specifically, the self-lubricating type piston has piston head and piston rod, and piston head is fixed on the piston rod, and it is equipped with the piston selflubricating mechanism that continues supplying lubricating oil into piston head between piston head and piston rod.
Described piston selflubricating mechanism comprises a connecting rod that connects piston head and piston rod, and the connecting rod inner chamber is shoe cream room and by the grease press structure lubricant oil in the shoe cream room is pressed into piston head.The grease press structure is an oily piston.The oil piston adopts spring precompressed automatic oil feed mode, and the shoe cream room end that spring is contained in the connecting rod inner chamber heads on oily piston.
At connecting rod grease gun and pump nozzle are installed, on pump nozzle, are connected with one-way valve.
Described piston head comprises piston and piston core, piston is fixed on the piston core end with bolt by pressing plate, the other end of piston core is fixed on the connecting rod, in the groove on the piston core circumference guide sleeve is housed, and guide sleeve is communicated with shoe cream room in the connecting rod by oil circuit.O type circle sealing sealing is adopted at the piston core rear portion.The piston lip adopts the back taper type to realize self sealing structure.
The utility model is in the systems such as existing thermal power plant ash trench system, the conveying of mill tailings slurry, remote high concentration conveying equipment---piston type slurry pump, the working life that has solved its core component piston is low, pump speed can not too high drawback, improved pump group overall performance on the one hand, owing to the raising of pump speed, on less unit, can realize the demand of bigger discharge capacity on the other hand, fill up domestic blank.
Specifically, the characteristics of the utility model scheme are:
1. thoroughly solved the piston quick abrasion in service of reciprocal slurry pump, the phenomenon that the life-span is low, the working life of having improved the easily damaged parts that comprises cylinder sleeve.
2. improve piston and used pump speed allowable, on less pump support, realized the demand of big discharge capacity, expanded the performance range of unit.
3. piston structure adopts the self sealing structure pattern, and lip adopts the back taper type, has changed the conventional piston rear portion during installation and has advanced the cylinder mode, directly just can put into cylinder sleeve by piston is anterior, and dismounting is more convenient quick.
4. increased the grease lubrication of automatic supply oil between piston and the guide sleeve, local pyrexia when having solved piston and cylinder sleeve relative movement, the situation of serious wear has also improved the life cycle of cylinder sleeve, and the life-span of the two can be reached more than the GB regulation twice.
Description of drawings
Figure is the utility model structural representation.
Embodiment
Embodiment of the present utility model is seen accompanying drawing.The self-lubricating type piston has piston head and piston rod 1, and piston head is fixed on the piston rod, and the piston selflubricating mechanism that continues supplying lubricating oil into piston head is housed between piston head and piston rod.Piston selflubricating mechanism comprises a connecting rod 15 that connects piston head and piston rod 1, and connecting rod 15 inner chambers are shoe cream room and by the grease press structure lubricant oil in the shoe cream room are pressed into piston head.The grease press structure is an oily piston 8.Oil piston 8 adopts spring 7 precompressed automatic oil feed modes, and the shoe cream room end that spring 7 is contained in connecting rod 15 inner chambers heads on oily piston 8.At connecting rod 15 grease gun 10 and pump nozzle are installed, on pump nozzle, are connected with one-way valve.Piston head comprises piston 4 and piston core 3, piston 4 usefulness bolts 6 are fixed on piston core 3 ends by pressing plate 5, piston core 3 other ends are fixed on the connecting rod 15, in the groove on piston core 3 circumference guide sleeve 16 are housed, and guide sleeve 16 is communicated with shoe cream room in the connecting rod by oil circuit.O type circle sealing 2 sealings are adopted at piston core 3 rear portions.Piston 4 lips adopt the back taper type to realize self sealing structure.
Because the utility model is in the connecting rod of piston, increased oiling device, under the effect of spring, will be by continual and steady being injected between piston rear portion and the guide sleeve of the lubricant oil in the chamber, the friction of cylinder sleeve and piston is reduced, reduced the generation of heating, prolonged the working life of cylinder sleeve and piston, reduce maintenance frequency, improved entire pump group reliability of operation.Behind piston operation a period of time lubrication oil consumption, utilize grease gun to fill it up with notes lubricant oil to oil pocket, fuel filler neck adopts one-way valve structures, has guaranteed not reflux out after lubricant oil is annotated into.
The utility model design principle is:
1, piston type slurry pump self-lubricating type piston structure design comprises that piston automatic oil feed structure, the design of piston inverted cone-shaped structure, piston and guide sleeve divide attachment structure.Increase lubricant reservoir in piston brace rod, continuing stably oiling in the gap between piston rear portion and guide sleeve under the pressure spring effect by oily piston, unidirectional pump nozzle structure has guaranteed that lubricant oil can be annotated and then can not discharge in the chamber.
2, the piston rear portion has increased grease lubrication, and local heating problem has reduced the wearing and tearing between the two when having solved piston and cylinder sleeve relative movement.Piston structure is that lip adopts the back taper type, has realized the self sealing structure pattern.
3, the supply mode of lubricant oil is a spring precompressed automatic oil feed mode.
4, piston 4 usefulness bolts 6 and pressing plate 5 are fixed on the piston core 3, and the sealing of O type circle is adopted at the piston core rear portion, has guaranteed the waste that the unlikely loss of lubricant oil causes too soon.
5, adopt positioning spigot between piston core and connecting body and the oil pocket, fix with connecting body with bolt 13 and pad 14 simultaneously.Guaranteed that piston is concentric with the movement locus of power end crosshead at the volley.
6, connecting body 15 removably connects with piston rod by bolt 11, nut 12, pad 14, is convenient to maintenance.
Working principle summary of the present invention:
Owing in the connecting rod of piston, increased oiling device, under the effect of spring, will be by continual and steady being injected between piston rear portion and the guide sleeve of the lubricant oil in the chamber, the friction of cylinder sleeve and piston is reduced, reduced the generation of heating, prolong the working life of cylinder sleeve and piston, reduced maintenance frequency, improved entire pump group reliability of operation.Behind piston operation a period of time lubrication oil consumption, utilize grease gun to fill it up with notes lubricant oil to oil pocket, fuel filler neck adopts one-way valve structures, has guaranteed not reflux out after lubricant oil is annotated into.
Claims (8)
1, self-lubricating type piston has piston head and piston rod (1), and piston head is fixed on the piston rod, it is characterized in that being equipped with between piston head and piston rod the piston selflubricating mechanism that continues supplying lubricating oil into piston head.
2, self-lubricating type piston according to claim 1, it is characterized in that described piston selflubricating mechanism comprises a connecting rod (15) that connects piston head and piston rod (1), connecting rod (15) inner chamber is shoe cream room and by the grease press structure lubricant oil in the shoe cream room is pressed into piston head.
3, self-lubricating type piston according to claim 2 is characterized in that described grease press structure is an oily piston (8).
4, self-lubricating type piston according to claim 3 is characterized in that described grease press structure is that middle oily piston (8) adopts spring (7) precompressed automatic oil feed mode, and the shoe cream room end that spring (7) is contained in connecting rod (15) inner chamber heads on oily piston (8).
5, self-lubricating type piston according to claim 2 is characterized in that at connecting rod (15) grease gun (10) and pump nozzle being installed, and is connected with one-way valve on pump nozzle.
6, according to any described self-lubricating type piston in the claim 1,2,3,4,5, it is characterized in that described piston head comprises piston (4) and piston core (3), piston (4) is fixed on piston core (3) end with bolt (6) by pressing plate (5), the other end of piston core (3) is fixed on the connecting rod (15), in the groove on piston core (3) circumference guide sleeve (16) is housed, guide sleeve (16) is communicated with shoe cream room in the connecting rod by oil circuit.
7, self-lubricating type piston according to claim 6 is characterized in that piston core (3) rear portion employing O type circle sealing (2) sealing.
8, self-lubricating type piston according to claim 6 is characterized in that piston (4) lip adopts the back taper type to realize self sealing structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200297709U CN201236790Y (en) | 2008-07-18 | 2008-07-18 | Self-lubricating type piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200297709U CN201236790Y (en) | 2008-07-18 | 2008-07-18 | Self-lubricating type piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201236790Y true CN201236790Y (en) | 2009-05-13 |
Family
ID=40649530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200297709U Expired - Fee Related CN201236790Y (en) | 2008-07-18 | 2008-07-18 | Self-lubricating type piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201236790Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321892A (en) * | 2013-05-29 | 2013-09-25 | 三一汽车制造有限公司 | Elastic piston and pumping system and engineering machine with elastic piston |
| CN106321419A (en) * | 2016-10-10 | 2017-01-11 | 国家海洋局天津海水淡化与综合利用研究所 | Novel self-seal type piston |
| CN115076093A (en) * | 2022-08-08 | 2022-09-20 | 深圳弗犹彻电子有限公司 | Self-lubricating piston pump and high-durability tooth washing device |
-
2008
- 2008-07-18 CN CNU2008200297709U patent/CN201236790Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321892A (en) * | 2013-05-29 | 2013-09-25 | 三一汽车制造有限公司 | Elastic piston and pumping system and engineering machine with elastic piston |
| CN106321419A (en) * | 2016-10-10 | 2017-01-11 | 国家海洋局天津海水淡化与综合利用研究所 | Novel self-seal type piston |
| CN115076093A (en) * | 2022-08-08 | 2022-09-20 | 深圳弗犹彻电子有限公司 | Self-lubricating piston pump and high-durability tooth washing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20160718 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |